Windows 10: Need help with MBR2GPT. Solved

  1.    06 May 2018 #1

    Need help with MBR2GPT.


    Hey I'm trying to convert my ssd to GPT from MBR. Tried the new tool from microsoft that's the results.

    Code:
    mbr2gpt.exe /convert /allowfullOS /logs:C:/
    
    MBR2GPT will now attempt to convert the default book disk.
    If conversion is successful the disk can only be booted in GPT mode.
    These changes cannot be undone!
    
    
    MBR2GPT: Attempting to convert disk 0
    MBR2GPT: Retrieving layout of disk
    MBR2GPT: Validating layout, disk sector size is: 512 bytes
    MBR2GPT: Trying to shrink the system partition
    MBR2GPT: Trying to shrink the OS partition
    Cannot find room for the EFI system partition.
    MBR2GPT: Conversion failed

    and the logs of course

    Code:
    2018-05-06 22:44:23, Info                         MBR2GPT was explicitly asked to run in full OS mode.
    2018-05-06 22:44:23, Info                         MBR2GPT: System disk number is 0
    2018-05-06 22:44:23, Info                         MBR2GPT: Attempting to convert disk 0
    2018-05-06 22:44:23, Info                         MBR2GPT: Retrieving layout of disk
    2018-05-06 22:44:23, Info                         MBR2GPT: Initial partition information
    2018-05-06 22:44:23, Info                         ===========================================================
    2018-05-06 22:44:23, Info                         Partition layout for disk: 0
    2018-05-06 22:44:23, Info                         Partition style          : MBR
    2018-05-06 22:44:23, Info                         MBR signature: 767874086
    2018-05-06 22:44:23, Info                         Number of partitions     : 1
    2018-05-06 22:44:23, Info                         ===================PARTITION===============================
    2018-05-06 22:44:23, Info                              Number: 1
    2018-05-06 22:44:23, Info                                Type: 7
    2018-05-06 22:44:23, Info                                Boot: Yes
    2018-05-06 22:44:23, Info                          Recognized: Yes
    2018-05-06 22:44:23, Info                               Style: 0
    2018-05-06 22:44:23, Info                              Offset: 1048576
    2018-05-06 22:44:23, Info                              Length: 119487593984
    2018-05-06 22:44:23, Info                              Volume: \\?\Volume{2dc4d426-0000-0000-0000-100000000000}\
    2018-05-06 22:44:23, Info                               Drive: C:\
    2018-05-06 22:44:23, Info                             NT Path: \Device\HardDisk0\Partition1
    2018-05-06 22:44:23, Info                         ===========================================================
    2018-05-06 22:44:23, Info                         ESP partition size will be 104857600
    2018-05-06 22:44:23, Info                         MBR2GPT: Validating layout, disk sector size is: 512 bytes
    2018-05-06 22:44:23, Info                         BCD: Opening store. Flags: 0x0
    2018-05-06 22:44:23, Info                         BCD: Store path: "\??\GLOBALROOT\device\harddisk0\partition1\Boot\BCD"
    2018-05-06 22:44:23, Info                         BCD: Loaded hive at BCD00000000
    2018-05-06 22:44:23, Info                         BCD: Opening object {9dea862c-5cdd-4e70-acc1-f32b344d4795}
    2018-05-06 22:44:23, Info                         FindOSPartitions: Default boot entry: {5B490907-4EDF-11E8-A88E-BD164AA05918}
    2018-05-06 22:44:23, Info                         BCD: Opening object {5b490907-4edf-11e8-a88e-bd164aa05918}
    2018-05-06 22:44:23, Info                         VERBOSE: Device path: \Device\HarddiskVolume1
    2018-05-06 22:44:23, Info                         VERBOSE: Dos path: \\?\GLOBALROOT\Device\HarddiskVolume1
    2018-05-06 22:44:23, Info                         FindOSPartitions: Volume name for the default boot entry: \\?\Volume{2dc4d426-0000-0000-0000-100000000000}\
    2018-05-06 22:44:23, Info                         BCD: Opening object {b29830aa-4edf-11e8-a88e-bd164aa05918}
    2018-05-06 22:44:23, Info                         VERBOSE: Device path: \Device\HarddiskVolume1
    2018-05-06 22:44:23, Info                         VERBOSE: Dos path: \\?\GLOBALROOT\Device\HarddiskVolume1
    2018-05-06 22:44:23, Info                         FindOSPartitions: Volume name for the recovery boot entry: \\?\Volume{2dc4d426-0000-0000-0000-100000000000}\
    2018-05-06 22:44:23, Info                         FindOSPartitions: WIM path for the recovery boot entry: \Recovery\WindowsRE\Winre.wim
    2018-05-06 22:44:23, Info                         FindOSPartitions: Default boot entry locale: he-IL
    2018-05-06 22:44:23, Info                         Bitlocker protection for C:\ is either off or suspended.
    2018-05-06 22:44:23, Info                         Unique ID recap for volumes:
    2018-05-06 22:44:23, Info                         Volume name: \\?\Volume{2dc4d426-0000-0000-0000-100000000000}
    2018-05-06 22:44:23, Info                         Unique ID size: 12
    2018-05-06 22:44:23, Info                         MBR2GPT: System partition and WinRE partitions are the same.
    2018-05-06 22:44:23, Info                         MBR2GPT: Trying to shrink the system partition
    2018-05-06 22:44:36, Warning                      MBR2GPT: Partition final size is: 119487593984 (initial size was 119487593984), cannot rely on this space
    2018-05-06 22:44:36, Info                         MBR2GPT: Trying to shrink the OS partition
    2018-05-06 22:44:45, Warning                      MBR2GPT: Partition final size is: 119487593984 (initial size was 119487593984), cannot rely on this space
    2018-05-06 22:44:45, Error                        Cannot find room for the EFI system partition.
    2018-05-06 22:44:45, Info                         MBR2GPT: Partition information at error point
    2018-05-06 22:44:45, Info                         ===========================================================
    2018-05-06 22:44:45, Info                         Partition layout for disk: 0
    2018-05-06 22:44:45, Info                         Partition style          : MBR
    2018-05-06 22:44:45, Info                         MBR signature: 767874086
    2018-05-06 22:44:45, Info                         Number of partitions     : 1
    2018-05-06 22:44:45, Info                         ===================PARTITION===============================
    2018-05-06 22:44:45, Info                              Number: 1
    2018-05-06 22:44:45, Info                                Type: 7
    2018-05-06 22:44:45, Info                                Boot: Yes
    2018-05-06 22:44:45, Info                          Recognized: Yes
    2018-05-06 22:44:45, Info                               Style: 0
    2018-05-06 22:44:45, Info                              Offset: 1048576
    2018-05-06 22:44:45, Info                              Length: 119487593984
    2018-05-06 22:44:45, Info                              Volume: \\?\Volume{2dc4d426-0000-0000-0000-100000000000}\
    2018-05-06 22:44:45, Info                               Drive: C:\
    2018-05-06 22:44:45, Info                             NT Path: \Device\HardDisk0\Partition1
    2018-05-06 22:44:45, Info                         ===========================================================
    2018-05-06 22:44:45, Info                         MBR2GPT: Conversion failed

    What should I do?

    Thanks!
      My ComputerSystem Spec

  2.    06 May 2018 #2

    Post image of current disk partition layout fron disk management.
      My ComputerSystem Spec

  3. topgundcp's Avatar
    Posts : 2,435
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       06 May 2018 #3

    From the log file. It appears that you only have one partition ie. C: which also contains the boot manager to boot from. There's no System Reserved partition as a normal MBR Windows installation (500MB System Reserved and C: drive). MBR2GPT is picky about the current disk layout of Windows, if not properly configured, it will fail the conversion.

    Open Disk Management and try to shrink C drive about 2GB and leave it unallocated, if failed then that means your C drive is fragmented. Defrag the disk and shrink again. Once done, try MBR2GPT. If failed again then post back the result and we can try different way.
      My ComputerSystem Spec

  4.    06 May 2018 #4

    topgundcp said: View Post
    From the log file. It appears that you only have one partition ie. C: which also contains the boot manager to boot from. There's no System Reserved partition as a normal MBR Windows installation (500MB System Reserved and C: drive). MBR2GPT is picky about the current disk layout of Windows, if not properly configured, it will fail the conversion.

    Open Disk Management and try to shrink C drive about 2GB and leave it unallocated, if failed then that means your C drive is fragmented. Defrag the disk and shrink again. Once done, try MBR2GPT. If failed again then post back the result and we can try different way.
    Yeah - if no system reserved partition it can be tricky.
      My ComputerSystem Spec

  5.    06 May 2018 #5

    Click image for larger version. 

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    @cereberusheres the disk managment

    topgundcp said: View Post
    From the log file. It appears that you only have one partition ie. C: which also contains the boot manager to boot from. There's no System Reserved partition as a normal MBR Windows installation (500MB System Reserved and C: drive). MBR2GPT is picky about the current disk layout of Windows, if not properly configured, it will fail the conversion.
    topgundcp said: View Post

    Open Disk Management and try to shrink C drive about 2GB and leave it unallocated, if failed then that means your C drive is fragmented. Defrag the disk and shrink again. Once done, try MBR2GPT. If failed again then post back the result and we can try different way.
    I can shrink only 1549MB for some reason :S
    That's enough?
      My ComputerSystem Spec

  6.    06 May 2018 #6

    Delete this comment.
      My ComputerSystem Spec

  7. topgundcp's Avatar
    Posts : 2,435
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       06 May 2018 #7

    I can shrink only 1549MB for some reason :S
    That's enough?
    As said above, the disk is fragmented and Yes, that's fine. Try MBR2GPT again. If failed, please post back. We'll get it to work.
      My ComputerSystem Spec

  8.    06 May 2018 #8

    Yes. That's the issue. Thanks for everyone!
      My ComputerSystem Spec


 

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